AHW_post-processing

WRFTutorialforHurricanes
Mesoscale&MicroscaleMeteorologicalDivision/NCAR1AHWPostProcessingCindyBruyèreWRFTutorialforHurricanes
Mesoscale&MicroscaleMeteorologicalDivision/NCAR2ProcessingAHWdata ARWoutput Whichpackagescanreadthisdata Movingnests Howdowedealwithmovingnestdata Hurricanetracking Generatingandplottinghurricanetracks HowtoadddiagnosticsWRFTutorialforHurricanes
Mesoscale&MicroscaleMeteorologicalDivision/NCAR3GraphicalPackages• NCL– Graphicalpackage• ARWpost– Converter
(GrADS&vis5d)• RIP4– ConverterandinterfacetographicalpackageNCARGraphics• WPP– Converter
(GrADS&GEMPAK)• VAPOR– Converterandgraphicalpackage– Support:VAPOR• IDV– GRIB(fromWPP)– GEMPAK(fromwrf2gem)– vis5d(fromARWpost)– CFcomplaintdata(fromwrf_to_cf)– Support:unidata• GEMPAK– Datafromwrf2gemorWPP– Support:unidataMatLab/IDL/R/ferretUG:9-2UG:9-28UG:9-19UG:9-35UG:9-50unidata.ucar.eduWRFTutorialforHurricanes
Mesoscale&MicroscaleMeteorologicalDivision/NCAR4NCL NCARCommandLanguage  ReadWRF-ARWdatadirectly Generateanumberofgraphicalplots Horizontal,cross-section,skewT,meteogram,panel Download  Filloutshortregistrationform(thereisashortwaitingperiod) ReadandagreetoOSI-basedlicense Getversion5.2orlater NCARG_ROOTenvironmentvariable setenvNCARG_ROOT/usr/local/nclWRFTutorialforHurricanes
Mesoscale&MicroscaleMeteorologicalDivision/NCAR5GeneratePlots Createascript wrf_real.ncl
(startwithasamplescript)
 SetNCARG_ROOTenvironmentvariable: setenvNCARG_ROOT/usr/local/ncl
 Ensureyouhavean~/.hluresfilefile
 RunNCLscript nclwrf_real.nclWRFTutorialforHurricanes
Mesoscale&MicroscaleMeteorologicalDivision/NCAR6NCLandWRF_NCL CombinestrengthofWRF_NCLspecificandNCLgeneralcapabilitiesa=addfile(./wrfout.d01.nc,r)t2=a-T2(5,:,:)t2=wrf_user_getvar(a,T2,5)qv=a-QVAPOR(5,:,:,:)qv=wrf_user_getvar(a,”QVAPOR,5)t2=a-T2t2=wrf_user_getvar(a,T2,-1)res@cnLevelSelectionMode=\ManualLevelsres@cnMinLevelValF=0.res@cnMaxLevelValF=1000.res@cnLevelSpacingF=50.contour=wrf_contour(a,wks,ter,res)res@ContourParameters=\(/0.,1000.,50./)contour=wrf_contour(a,wks,ter,res)plot=wrf_map_overlays\(a,wks,(/contour/),pltres,mpres)mpres@mpGridSpacingF=45plot=wrf_map_overlays\(a,wks,(/contour/),pltres,mpres)WRFTutorialforHurricanes
Mesoscale&MicroscaleMeteorologicalDivision/NCAR7SpecialWRFFunctions wrf_user_getvar
Getfieldsfrominputfile
ter=wrf_user_getvar(a,”HGT”,0){ter=a-HGT(0,:,:)}
t2=wrf_user_getvar(a,”T2”,-1){t2=a-T2}
slp=wrf_user_getvar(a,”slp”,1)
avo/pvo:Absolute/PotentialVorticity,
cape_2d:2Dmcape/mcin/lcl/lfc,
cape_3d:3Dcape/cin,
dbz/mdbz:Reflectivity(3Dandmax),
geopt/geopotential:Geopotential,
p/pres/pressure:Pressure,
rh/rh2:RelativeHumidity(3Dand2m),
slp:SeaLevelPressure,
td/td2:DewPointTemperature(3Dand2m),
tc/tk:Temperature(CandF),th/theta:PotentialTemperature,
z/height:Height,ua/va/wa:windonmasspoints,
uvmet/uvmet10:windrotatedtoearthcoordinates(3Dand10m)WRFTutorialforHurricanes
Mesoscale&MicroscaleMeteorologicalDivision/NCAR8SpecialWRFNCLFunctions wrf_user_getvar
Getnativeanddiagnosticvariables wrf_contour/wrf_vector
Createline/shaded&vectorplots wrf_map_overlays/wrf_overlays
Overlayplotscreatedwithwrf_contourandwrf_vector wrf_user_intrp3d/wrf_user_intrp2d
Interpolatehorizontallytoagivenpressure/height
(3ddataonly)
Interpolateverticallyalongagivenline wrf_user_ll_to_ij/wrf_user_ij_to_ll
Convert:lat/lonij wrf_user_list_times
Getlistiftimesavailableininputfile wrf_user_unstagger
UnstaggersanarrayWRFTutorialforHurricanes
Mesoscale&MicroscaleMeteorologicalDivision/NCAR9Resources ThespecialWRFfunctionshaveuniqueresources:

NCL_functions.htm AllgeneralNCLresourcescanalsobeusedtocontroltheplot:

Mesoscale&MicroscaleMeteorologicalDivision/NCAR10RIP4INPUTDATARIPDPformatonefileperTIME&VARRIPRIPDPWRFTutorialforHurricanes
Mesoscale&MicroscaleMeteorologicalDivision/NCAR11General RequiresNCARGraphicslow-levelroutines  NCLVersion5:  ReleasedNovember2007 CombineNCLandNCARGraphics OpenSource Recommended DownloadCode:  
Mesoscale&MicroscaleMeteorologicalDivision/NCAR12RIP4onyourcomputer setenvironmentvariables
setenvRIP_ROOT/usr/$USER/RIP4(rip_root)
setenvNCARG_ROOT/usr/local/ncarg(/usr/local/ncl)
 Configure
./configure
(checkconfigure.riptoensurenetCDFpathsarecorrect)
 Compile
./compile
 RIP4has2parts(RIPDPandRIP)ripdp_wrfarwripdp_wrfnmmripdp_mm5WRFTutorialforHurricanes
Mesoscale&MicroscaleMeteorologicalDivision/NCAR13Runningripdp&ripripdp_wrfxxx[–nnamelist-file]model_data_name\[basic/all]input_file(s)rip[-f]model_data_namerip-execution-nameExample:ripdp_wrfarwRIPDP/arwallwrfout*rip[-f]RIPDP/arwrip_sample.inoutput[rip_sample.out]rip_sample.TYPEWRFTutorialforHurricanes
Mesoscale&MicroscaleMeteorolo